https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13992195Edit ImageSaveSaveEditCropCustom TextA hand held over a dark mark on a forearm, to demonstrate the manual treatment of ulcers. Photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 816 px | 300 dpiLarge JPEG 3250 x 2211 px | 300 dpiFree DownloadA hand held over a dark mark on a forearm, to demonstrate the manual treatment of ulcers. Photograph.More